Two-time Indy 500 winner Dario Franchitti will be a guest on The Late Show with David Letterman tonight. While that's interesting in and of itself, and Dario is clearly an entertaining interview, here's another reason why we'll be watching: John Lamm's superb photos of the Jim Clark's Indy-winning Lotus 38—the car that Dario drove at the Speedway for the "Dario's Dream" feature in our January issue—will be shown. What's more, we hear that Letterman is wild about the green Lotus, the first rear-engine car to win at Indianapolis. Clearly, he's a man of good taste. Tune in tonight!